code: def mktime_tz(data):
      """Turn a 10-tuple as returned by parsedate_tz() into a POSIX timestamp."""
      if data[9] is None:
          # No zone info, so localtime is better assumption than GMT
          return time.mktime(data[:8] + (-1,))
      else:
          t = calendar.timegm(data)
          return t - data[9]
  
imports: import time, calendar
label_desc: Use image node_id 4 for calling a global function with example usage: mktime_tz(data) and returns: time, unknown